September Weather in Darhan, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Darhan, Mongolia hovers around 12°C (54°F). Expect a broad range with minimums dipping to -6°C (21°F) and maximums soaring to 29°C (85°F). During this period, precipitation accumulates to about 26 mm (1.0 in) over roughly 5 days, accompanied by an average humidity of 67%.

September Temperature in Darhan

In September in Darhan, the average temperature is 12°C (54°F). The maximum can reach 29°C (85°F), while the minimum can drop as low as -6°C (21°F). Be sure to pack accordingly, as the weather can vary significantly during this time.

September Weather in Darhan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Darhan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Darhan, September typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (85°F) and lows dropping to around -6°C (21°F).

Data source: Temperature data for Darhan generated using information from the Copernicus Climate Change Service.

September Precipitation in Darhan

In Darhan in September, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.

September Precipitation Trends in Darhan

The chart displays monthly precipitation patterns in Darhan, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Darhan, September typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Darhan

In Darhan in September, humidity is 67%. With an average temperature of 12°C (54°F), this humidity feels like a cool, damp blanket wrapping around you, making it essential to layer your clothing for comfort while exploring.

September Average Humidity in Darhan

This chart illustrates the average monthly humidity levels in Darhan, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Darhan is approximately 67%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Darhan

In Darhan in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Darhan.

Maximum UV Index Levels in Darhan for September

The chart shows the monthly maximum UV Index (UVI) for Darhan in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Darhan typically reaches 7, which falls under the high exposure category.

Data source: Darhan September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Darhan Compares to Other Months

Weather in Darhan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Darhan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Darhan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-18°C (0°F)	2 mm (0.1 inches)	90%	low
February Weather	-14°C (7°F)	3 mm (0.1 inches)	80%	moderate
March Weather	-3°C (26°F)	4 mm (0.1 inches)	64%	moderate
April Weather	5°C (41°F)	10 mm (0.4 inches)	59%	high
May Weather	12°C (54°F)	16 mm (0.6 inches)	52%	very high
June Weather	19°C (66°F)	25 mm (1.0 inches)	53%	very high
July Weather	21°C (70°F)	54 mm (2.1 inches)	59%	very high
August Weather	17°C (63°F)	76 mm (3.0 inches)	61%	very high
September Weather	12°C (54°F)	26 mm (1.0 inches)	67%	high
October Weather	2°C (36°F)	10 mm (0.4 inches)	67%	moderate
November Weather	-8°C (18°F)	7 mm (0.3 inches)	67%	moderate
December Weather	-16°C (4°F)	2 mm (0.1 inches)	88%	low